no code implementations • 8 Feb 2024 • Caio Peixoto, Yuri Saporito, Yuri Fonseca
This paper proposes SAGD-IV, a novel framework for conducting nonparametric instrumental variable (NPIV) regression by employing stochastic approximate gradients to minimize the projected populational risk.
no code implementations • 23 Feb 2022 • David Evangelista, Yuri Saporito, Yuri Thamsten
We propose two novel frameworks to study the price formation of an asset negotiated in an order book.
1 code implementation • 16 Oct 2020 • Mike Ludkovski, Yuri Saporito
We further discuss the application to Delta hedging, including a new Lemma that relates quality of the Delta approximation to discrete-time hedging loss.
no code implementations • 30 Nov 2019 • Ali Al-Aradi, Adolfo Correia, Danilo de Frietas Naiff, Gabriel Jardim, Yuri Saporito
We extend the DGM algorithm to solve for the value function and the optimal control \simultaneously by characterizing both as deep neural networks.
2 code implementations • 21 Nov 2018 • Ali Al-Aradi, Adolfo Correia, Danilo Naiff, Gabriel Jardim, Yuri Saporito
In this work we apply the Deep Galerkin Method (DGM) described in Sirignano and Spiliopoulos (2018) to solve a number of partial differential equations that arise in quantitative finance applications including option pricing, optimal execution, mean field games, etc.